1.起飞进近过程中AP脱开 B-2594飞机在我公司投入运行半年后机组总是反映该机在起飞和进近过程中AP-自动驾驶仪不能接通或脱开,进入巡航平飞后正常,后经机务跟机观察AP工作又都正常,地面测试AP工作也正常,又过两个月后,机组反映同样故障出现。初步断定此故障为间隙隐藏性故障,决定多次跟机详细观察 1. During take-off and landing AP detached B-2594 aircraft put into operation in our company six months after the crew always reflects the aircraft during takeoff and approach AP-autopilot can not be connected or disconnected, into the cruise level flight After the normal, after the aircraft maintenance and operation observed AP work are normal ground AP test work is normal, and after two months, the unit reflects the same fault occurs. Initially concluded that the fault gap hidden fault, decided to follow up with the machine several times to observe